98 lines
2.5 KiB
YAML
98 lines
2.5 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/input/touchscreen/fsl,imx6ul-tsc.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Freescale i.MX6UL Touch Controller
|
|
|
|
maintainers:
|
|
- Haibo Chen <haibo.chen@nxp.com>
|
|
- Shawn Guo <shawnguo@kernel.org>
|
|
- Sascha Hauer <s.hauer@pengutronix.de>
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx6ul-tsc
|
|
|
|
reg:
|
|
items:
|
|
- description: touch controller address
|
|
- description: ADC2 address
|
|
|
|
interrupts:
|
|
items:
|
|
- description: touch controller address
|
|
- description: ADC2 address
|
|
|
|
clocks:
|
|
maxItems: 2
|
|
|
|
clock-names:
|
|
items:
|
|
- const: tsc
|
|
- const: adc
|
|
|
|
xnur-gpios:
|
|
maxItems: 1
|
|
description:
|
|
The X- gpio this controller connect to. This xnur-gpio returns to
|
|
low once the finger leave the touch screen (The last touch event
|
|
the touch controller capture).
|
|
|
|
measure-delay-time:
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
description:
|
|
The value of measure delay time. Before X-axis or Y-axis measurement,
|
|
the screen need some time before even potential distribution ready.
|
|
default: 0xffff
|
|
minimum: 0
|
|
maximum: 0xffffff
|
|
|
|
pre-charge-time:
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
description:
|
|
The touch screen need some time to precharge.
|
|
default: 0xfff
|
|
minimum: 0
|
|
maximum: 0xffffffff
|
|
|
|
touchscreen-average-samples:
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
|
description: Number of data samples which are averaged for each read.
|
|
enum: [ 1, 4, 8, 16, 32 ]
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
- clocks
|
|
- clock-names
|
|
- xnur-gpios
|
|
|
|
allOf:
|
|
- $ref: touchscreen.yaml#
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
#include <dt-bindings/clock/imx6ul-clock.h>
|
|
#include <dt-bindings/gpio/gpio.h>
|
|
touchscreen@2040000 {
|
|
compatible = "fsl,imx6ul-tsc";
|
|
reg = <0x02040000 0x4000>, <0x0219c000 0x4000>;
|
|
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
|
|
<GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&clks IMX6UL_CLK_IPG>,
|
|
<&clks IMX6UL_CLK_ADC2>;
|
|
clock-names = "tsc", "adc";
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_tsc>;
|
|
xnur-gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
|
|
measure-delay-time = <0xfff>;
|
|
pre-charge-time = <0xffff>;
|
|
touchscreen-average-samples = <32>;
|
|
};
|